Polysulfide coatings are used in a wide variety of environmental prote
ction applications. The suitability of these coatings for such applica
tions is explained by reference to the chemical structure of the polys
ulfide polymer. A description of the different cure chemistries availa
ble to these coatings is given. The benefits of using polysulfide poly
mers as modifiers for epoxy and alkyd coatings are also discussed. Cas
e histories are used to illustrate the use of polysulfide coatings for
chemical containment, potable water protection and corrosion preventi
on.